Observing Projects

Star Colour Observing Survey

Chris Lord invites you to take part in his observing project. He would like you to observe coloured stars, of different magnitudes,
and see what magnitude people can go down to while still being able to perceive the colour of the star, using direct vision.

Binocular observations are valid as well as telescopic.

See here for more details.

See also:

Star colour swatch for Adobe Photoshop
What colour are the stars?
Star Colours
star colours:2 (colour effects based on magnitude m(v) = 2.7 + 5lgD(cm)